General description Sealey TRX-Star/Hex/Spline Bit Set Impact is a comprehensive 42-piece set designed for professional use. Made from high-quality impact grade S2 steel with a satin finish, this set includes bits in both 36mm and 75mm lengths. The heat-treated CNC machined tips are engineered to reduce stress and prevent cam-out under load, while torsion bits absorb impact and transfer maximum torque to the fixing. The bits are hardened (58-62 HRC) and tempered for added strength, and they are color-coded for fast identification. The set is supplied in a storage case with an inclined tray for quick and easy bit selection. Technical specifications Drive: 3/8" & 1/2" Sq MPN: AK21901 EAN: 5054511977868 Nett Weight: 1.9 kg Contents TRX-Star Bits: T20, T25, T30, T40, T45, T50, T55, T60 (1 each 36mm and 75mm) Hex Bits: 4, 5, 6, 7, 8, 10, 12mm (1 each 36mm and 75mm) Spline Bits: M5, M6, M8, M10, M12 (1 each 36mm and 75mm) Drive Adaptors: 3/8" Sq x 10mm Hex, 1/2" Sq x 10mm Hex Other